Rotary engine



' STATES BATN T ABRAHAM ANDREWS, OF BERNVILLE, PENNSYLVANIA.

ROTARY ENGINE.

i Specification of Letters Patent No. 23,066, dated March 1, 1859.

To all whom it may concern:

Be it known that I, ABRAHAM ANDREWS, of Bernville, Berks county, andState of Pennsylvania, have invented a new and useful Improvement inRotary Engines; and I do hereby declare that the following is a full andexact description thereof, reference being had to the accompanyingdrawings,

making a part of this specification, and to.

the letters of reference marked thereon.

The nature of my invention is a device operating as a revolving cylinderwith two arms acting as piston heads. Also a mortised valve lid, and thearrangement of plungers, all in combination and operating without theuse of a crank.

To enable others skilled in the art to make and use my invention, I willproceed to describe its construction and operation.

Figure 1, represents a front view of ma chine; Fig. 2, `a side view;Fig. 3, a view of wheel showing the eccentric groove in which therollers of the plungers operate; Fig. 4 a sectional end view of cylinderwith its plungers and valves.

A represents an ordinary square frame to support the engine.

B represents the axle or main shaft to which I propose attaching acarriage wheel at each end, one wheel to run' independent of the other.This axle or shaft B, is the shaft of the revolving piston with twoheads C, the head C, acting as piston heads and as one of these headspasses one of the valves D another valve D is opening on the other headand forcing it around, by this arrangement, I retain the full length ofcrank power without the use of a crank.

The steam is introduced through induction pipe IV, as shown on Fig. 4l,and I propose having three chambers, each of which will receive steamthrough induction pipe in a similar manner by a passage X throughconcave Y into the cylinder as shown on Fig. 4, and as a third chamberis taking steam the first one has not yet exhausted, consequently thefirst is working by expansion which is about the one-third of itsrevolution until it passes the passage X X into the cylinder, andalternately with the steam chamber and exhaust pipe F F. hen the pistonis revolving in one direction one of these passages becomes theinduction and the other the eduction way for the steam, and this isreversed when the motion of the pist0n is reversed the valve D has threeapertures F, G, H, and as the steam enters at F it exhausts, at G, andon the opposite side the same, when reversed, the valve is open at H.The valve I, has one mortised aperture J, this mortise will enable me toreverse the engine with only the one cam wheel and the valve I, ispushed back and forward by the connecting rod K, which is operated bythe cam or grooved wheel L, as it revolves with the shaft, B, therebeing a pin M on the connecting rod K, which moves in the eccentricgroove N, of the wheel L. I thus use the steam and the power of exhaustwith a saving of fuel, the plungers I), are attached to a frame R ateach side, and this frame raises and lowers the plungers bymeans of therollers S revolving in the eccentric grooves T, of the wheels U, whichare fastened to and revolve with the shaft B. To reverse the engine Ipropose att-aching an ordinary lever at the grooved hub V, of the camwheel L which operates the connecting 'rods K, so that the cam wheel Lwill be easily moved in or out.

I am aware that plungers and revolving steam pistons have been made andused but I do not claim either of them, but

That I claim as my invention and desire to secure by Letters Patent isyl. I claim the mortised valve, I, and its connection with the rod K asoperated by the cam wheel L in combination with the said axle or shaft.

2. I claim the arrangement of the plungers P with their side rollers Sand cam wheels U, in combination with the axleor shaft B substantiallyas herein described and for the purpose set forth.

ABRAM. ANDREVS.

Titnesses MICHL. K. BOYER, THOMAS C. DoNN.

